I've had a lingering, irritating issue with my 73 efi fasty for several months. It has been intermittent and impossible to diagnose. Until now.
After a 10 minute or so drive at highway speeds, it would shutter a little, sometimes alot. When I exit it would idle so low and rough the genny light would dimly flicker, sometimes it would stall. It has also been running rich, seemingly getting progressively worse over time. Starts right back up, and all is fine.
I finally was able to come to a complete stop, without it stalling, with my trusty voltmeter handy. It fluctuated between 8-10 volts, would go up to 14 ish at fairly high rpm. When running normally I get 14-14.5 volts constant, like after I start it back up.
I'm pretty confident I have a voltage problem, my regulator is bosch, about a year and a half old, same with genny. All EFI grounds are fine. What else should I look into, and how should I go about isolating the problem to either the VR, genny, or ?
TIA,
Robb
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